by Jeff Zillgitt, USA TODAY Sports

Big men Pau Gasol and Nikola Mirotic both tweeted that they will join the Bulls, and guard Kirk Hinrich will return to Chicago, a person familiar with Hinrich's deal told USA TODAY Sports.

The person requested anonymity because he was not authorized to speak publicly until the deal was official.

Gasol ended his difficult by choosing the Bulls, who now have very impressive frontcourt with Joakim Noah, Taj Gibson, Gasol and Mirotic.

Hinrich reached a two-year, $5.5 million deal with a player option on the second year.

Mirotic, who was born in Montenegro but also has Spanish citizenship, was the No. 23 pick in the 2011 draft but stayed in Spain to play for Real Madrid. He had an expensive $3 million buyout, and under NBA rules, the Bulls contributed $600,000 to the buyout. The Bulls will sign Mirotic to a three-year deal worth approximately $17 million.

The 6-10 Mirotic is a power forward who can also step out and make three-pointers. Mirotic, 23, was the Spanish league MVP in 2013 and named MVP of the Spanish Cup last season.

All this spending indicates the Bulls are on the verge of using the amnesty provision on veteran forward Carlos Boozer.